<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>获取cookie</title>
</head>
<body>

<script type="text/javascript">
    var tcNum=1;
    var d= new Date();
    d.setTime((new Date()).getTime() + 24 * 60 * 60 * 1000);
    document.cookie="tcNum="+ tcNum + ";expires=" + d;

    var cook=parseInt(getCookie("tcNum"));
    console.log(cook);



    //写cookies
    function setCookie(name,value,day)
    {
        var Days = day;
        var exp = new Date();
        exp.setTime(exp.getTime() + Days*24*60*60*1000);
        document.cookie = name + "="+ value + ";expires=" + exp.toGMTString();
    }
    //读取cookies
    function getCookie(name)
    {
        var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
        if(arr=document.cookie.match(reg))
            return unescape(arr[2]);
        else
            return null;
    }
    //删除cookies
    function delCookie(name)
    {
        var exp = new Date();
        exp.setTime(exp.getTime() - 1);
        var cval=getCookie(name);
        if(cval!=null)
            document.cookie= name + "="+cval+";expires="+exp.toGMTString();
    }
</script>

</body>
</html>
